The International Civil Aviation Organization (ICAO), a United Nations agency, is hosting a Conference on Aviation and Alternative Fuels (CAAF/2) on October 11 to 13, 2017 in Mexico City. The conference’s aim is to agree to an ICAO Vision on Aviation Alternative Fuels for international aviation. CAAF/2 will also encourage countries to advance national and international policies to develop and deploy sustainable aviation fuels (SAF).